[horde] horde how to set up S/MIME to use 3DES 168-bit instead of RC2 40bit?

[Peter Irbizon]

hello,

how can I set up S/MIME to use 3DES 168-bit instead of RC2 40bit in horde?I
don't see any setting for this?
And where horde stores public certificates? I imported certificates but I do
not see it in list (but what's interesting I can send encrypted message to
recipient)

thank you